User`s manual

GETTING STARTED
RS-232 connection
You must connect your radio to an RS-232 port of your computer before you can
operate the software. A screened cable with 5 conductors is required for connecting the PC to the
receiver. If you have previously been using the DOS program AOR Spectrum Coordinator
(AORSC), you can use the same cable.
If screened cable is not used then digital noise may radiate from the conductors of
the cable and cause interference to reception. All cable connections should be high quality
for durability.
Configure the serial cable according to the diagram given below:
PC 25w Female Radio 25w Male
SHIELD 1 ————————————— 1
TXD 2 ————————————— 2
RXD 3 ————————————— 3
RTS 4 ————————————— 4
CTS 5 ————————————— 5
GND 7 ————————————— 7
6, 8-25 Not Connected 6, 8-25 Not Connected
If you are using an AR-3000, pin 1 and pin 7 must be shorted together at the radio’s
end of the cable. The cable should be one-to-one (as shown) for the AR-3000A.
If you are using a 9-way connector, please refer to your computer manual for details of
the pin connections (this may vary between manufacturers). One possible pinout is listed below
(this is for the PTI-209 I/O card, which is quite common):
GETTING STARTED
AOR Searchlight User’s Guide 9